Давай решим эти уравнения по шагам.
2x + x = 183x = 18x = 18 / 37x + 2x = 30 - 39x = 27x = 27 / 97 + 18 = 3x + 2x25 = 5xx = 25 / 50,2x + 1,1x = 1,4 - 2,71,3x = -1,3x = -1,3 / 1,35,4 + 3,6 = 0,3x + 1,5x9 = 1,8xx = 9 / 1,824 * (\(\frac{3}{8} x\)) + 24 * 15 = 24 * (\(\frac{1}{6} x\)) + 24 * 109x + 360 = 4x + 2409x - 4x = 240 - 3605x = -120x = -120 / 5